Interleaving machine



INTERLEAVING MACHINE l Filed oct'. 1s, i952 2 sheets-sheet 1 B l m, Z n w/ 3 a a Y. 3N 1W if El 2./ E Wzmwu.. 4@ 7 ll B Ill' w H M a H KJ 4 2A M .9m

l Mmm/T .NVENTDR Aug; 28, 1934. E. JAcoBsEN Er AL INTERLEAVING MACHINE Ela- Patented Aug. 28, 1934 y INTERLEAVING unioni-rui:k .f i ,*Edwin Jacobsen and Irving PercyI Simonsen, Los

' Angeles, Calif., assignors to Milo Murray Harding, Los Angeles, Calif. Y Application october 1s, 1932, serial No. 638.316

Our invention relates to interleaving machines to be used with duplicatingv machines, printing presses and the like Where it becomes necessary to place an ink absorbing sheet between the print- 5i ed sheets, thus obviating smudging or transferring of the printed matter to the back of the adjacent sheet.

The primary object of our invention is to provide an interleaving machine that may be timed 'mii at drum speed without the use of a reduction gear.

A further object of our invention is to provide a releasing mechanism that will allow the interleaving sheets to drop quickly with a minimum of wear to the sheet. 152; A further object of our invention is to provide an interleaving machine wherein the mechanism may be entirely shrouded.

With these and incidental objects in View, the invention consists in certain novel features of '20j construction and combination of parts, a preferred form of embodiment of which is hereinafter shown with references to the drawings, which accompany and form a part of the specification.

In the drawings:

Fig. 1 is a side elevation of the device showing how it is attached to a duplicating machine.

Fig. 2 is a cross sectional view taken on line A-A, Fig. 1. K

Bog Fig. 3 is a fragmentary cross sectional view taken on line B-B, Fig. 2.

Fig. 4 is a fragmentary cross sectional view taken on line C-C, Fig. 3, looking in the direction indicated.

t Fig. 5 is a plan view of the interleaving sheets removed from the machine.

Like reference characters refer to like parts throughout the several views.

Our device consists of a flat base element 1 .O-pwhich rests upon the rubber feet 2. A boxlike frame 3 is securely fastened to the base 1. A round tube 4 having a pointed tip 5 is secured to the outer end of the extended frame 3.V There are two upright guides 6 fastened to the base. A pair of elements having U slots 7, in which the cross rod of the duplicating machine is placed, are secured vto the base 1. g ,Y

The interleaving sheets 8 have the apertures 9 which the guides 6 displace. The apertures 10V 50n-which accommodate the bale 11 holds the group of the sheets together. The apertures 12 are cut inV the sheet to allow jit to dropouickly. The releasing apertures 13 are so made that when the sheets are stacked alternately the aperture 55 through the mass appears to be a round hole.

A groupcf interleaving sheets is placed on the Vmachine so that the guides 6 are rin the. apertures 9 and the tube 4 through the-aperture 13. The sheets are held upon the tube 4 y by the finger 14. It may be seen from Fig. 2 that 00 the fingers 14 and 15 are controlled by the lever 16 which is fulcrumed at 17, which in turn operates the lever 18, which is fulcrumed at 19 through the connecting link 20. The fingers 14 y and 15 are freely hinged to the lever 18 by the 66 pin 21. As the lever 18 is moved from one side of the tube to the other, the levers 14 and 15 are caused to engage with the, stationary pin 22 alternately elevating the lever to a substantially horizontal position. The lever begins to 70". raise slightly before the pin 21 reaches the center of the tube and begins to drop slightly after the pin 21 reaches the center of the tube 4. From this fact it may be seen that at all times a portion 0f at least one of the fingers is extending beyond 75"- the wall of the tube 4, thus preventing the stack of interleaving sheets to slide by the fingers. Due to the keyhole-like shape of the aperture 13,'it allows just one sheet over the extended finger as each sheet is alternated in the stack. 8'0' The sheets may be placed on the tube 4 at anyv time as the lever 14 and 15 will fold upwardly and into the tube returning by inertia after the sheets have cleared the fingers.

The lever 16 receives its motion from the al- 35"v ternating cam 23 which is hinged to the actuating lever 24 which swings on its axis 25. Referring to Fig. BY-as the lever 24 is moved toward the lever 16, the surface 26 of the cam 23 causes they lever 16 to move upon its fulcrum 17in the di- 9'0" rection of the axis 25. The sliding pin 27 which at this time is in an upward Vposition as shown in Fig. 4 is forced to slide in the cam 23 as it strikes the angled portion 28 of the cam 29, forcing it below the transverse cam 30. The pin 27 95` is now in a position to engage with the transverse cam 31 and as the lever 24 is returned the cam 23 is caused to swing on its axis 32 to a position` corresponding to the angle of the transversecam 31, as shown by the dotted line in Fig. 3. As the lever 16 is now opposite the cam 29, the surface 33 of the cam 23 causes the! lever 16 to return to the position shown in Fig. 3 as the actuating ,lever 24 is again moved forward. 'Ihe cam 28 mi.

of the cam 34forces the pin 27 back into the position shown in Fig. 4. As the actuating lever 24 is returned to the position shown in Fig. 3, the pin 27 is engaged by the cam 30, returning the cam 23 to its original position.- n

The actuating lever 24 may be connected by a link to the drum or other moving parts of the duplicating machine.

When one of the interleaving sheets is released, the nger 14 or 15 continues to elevate the remaining sheets, thus causing the sheet to drop quickly. A c I While the above mechanism herein shown and described is admirably adapted to fuliill the objects primarily stated, it is to be understood that it is not intended to conne the invention to the one form of embodiment herein shown and described, as it is susceptible of embodiment in various forms all coming Within the scope of the claims Which follow.

What We claim is:

1. An interleaving machine comprising a base,

a frame secured to the base, a tube extending downward from and secured to the frame, ka lever 2. In a device of the class described, a mechanism for releasing interleaving sheets consisting of a vertical tube suspended from a frame, a. lever hinged central of the tube, a pair of oppositely disposed fingers hinged to the lever, and aT link for imparting motion to the first mentioned link.

Zi.y An interleaving mechanismcomprised of a vertical lever for impartingfmotion to a lever having a pair of elevating ngers secured thereto, a link'connecting the two levers and an enclosure -for` the above mechanism having openings in which the elevating fingers operate.

1. In combination with an interleaving machine, a stack ofinterleaving sheets having releasing apertures resembling a keyhole in shape,

" said apertures being'so placed that the slotted portion of the apertures will be diametrically opposite when the sheets are alternated in the stock, their longitudinal centerline paralleling one of the centerlines of the interleaving sheets.

EDWIN JACoBsEN.

v IRVING PERCY SIMONSEN. 

